| 摘要 |
<p>On the transmission side, a transmission signal is divided into a first information signal combined by spread codes, and a second information signal other than the first information signal. The combination of the spread codes corresponding to the first information signal is selected, and the spread modulation is performed on the second information signal by using the selected combination of the spread codes. On the reception side, a reception signal is de-spread by the spread codes used on the transmission side, the combination of the spread codes used on the transmission side is selected by using the de-spread signal, and the first information signal by the combination of the spread codes is obtained from the combination of the spread codes.</p> |
